- -
HLP-C
+
Inverters
STX
“：”
(3AH)
ADDR FUNC LEN
DATA
（n-1）
....
DATA
0
CRC
END
CR(0DH)
LF(0AH)
3
：
Communication Document Formats
3.1 ASCII Mode
Communication Document Forms
⑴
STX
：
Starting unit“
：
”
（
3AH
）
⑵
ADDR communication address,8-bit data is composed of two
ASC
Ⅱ
byte.
00
：
Broadcast mode is MODBUS
01~250
：
the addresses of corresponding inverters.
⑶
FUNC
：
Function code 8-bit data is composed of two ASC
Ⅱ
byte.
01
：
FUNC READ, Read the data of function code
02
：
FUNC WRIT, write the data of function code
03
：
write control data
04
：
read control status data
05
：
write inverter frequency data
06
：
Reserved
07
：
Reserved
08
：
Loop test
a
：
Read function code data
format:
ADDR 01 LEN FUNC Data
ADDR=0 means no answer
ADDR≠0 means a reply from inverter of this address
When inverter reply normal, the format as follows
：
ADDR 01 LEN FUNC Data
If DATA is one word, the LEN=3, If DATA is one byte, the
LEN=2 .
When inverter has no this function code or reply no effect, the
format as follows
：
ADDR 81H 01 FUNC
b
：
Write function code data
Format
：
ADDR 02 LEN FUNC Data
